Changes to Regulation (EU) 2017/1938 concerning measures to safeguard the security of gas supply
EU Regulation 2017/1938
Made by Gas (Security of Supply and Network Codes) 2019
239 changes. All changes to Regulation (EU) 2017/1938 concerning measures to safeguard the security of gas supply
From legislation.gov.uk's record of changes, the official one: see it there.